/*
 * Copyright (c) 2015-2020, www.dibo.ltd (service@dibo.ltd).
 * <p>
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not
 * use this file except in compliance with the License. You may obtain a copy of
 * the License at
 * <p>
 * https://www.apache.org/licenses/LICENSE-2.0
 * <p>
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations under
 * the License.
 */
package com.icesoft.framework.core.vo;

import com.baomidou.mybatisplus.core.metadata.IPage;
import com.icesoft.framework.core.config.Cons;
import com.icesoft.framework.core.util.S;
import com.icesoft.framework.core.util.V;

import java.util.ArrayList;
import java.util.List;

/**
 * JSON返回结果
 */
public class PagingJsonResult<T> extends JsonResult<T> {
	private static final long serialVersionUID = 1002L;

	/***
	 * 分页相关信息
	 */
	private Pagination page;

	public PagingJsonResult() {
	}

	public PagingJsonResult(T data) {
		this.data(data);
	}

	/**
	 * 默认成功，无返回数据
	 */
	public PagingJsonResult(JsonResult<T> jsonResult, Pagination pagination) {
		super(jsonResult.getCode(), jsonResult.getMsg(), jsonResult.getData());
		this.page = pagination;
	}

	/**
	 * 基于IPage<T>转换为PagingJsonResult
	 *
	 * @param iPage
	 * @param
	 */
	public PagingJsonResult(IPage<?> iPage) {
		Pagination pagination = new Pagination();
		pagination.setPageIndex((int) iPage.getCurrent());
		pagination.setPageSize((int) iPage.getSize());
		pagination.setTotalCount(iPage.getTotal());
		if (V.notEmpty(iPage.orders())) {
			List<String> orderByList = new ArrayList<>();
			iPage.orders().stream().forEach(o -> {
				if (o.isAsc()) {
					orderByList.add(o.getColumn());
				} else {
					orderByList.add(o.getColumn() + ":" + Cons.ORDER_DESC);
				}
			});
			pagination.setOrderBy(S.join(orderByList));
		}
		this.page = pagination;
		T data = (T) iPage.getRecords();
		this.data(data);
	}

	public Pagination getPage() {
		return page;
	}

	public PagingJsonResult setPage(Pagination pagination) {
		this.page = pagination;
		return this;
	}

}